1 /*- 2 * Copyright (c) 1998 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The DragonFly Project 6 * by Sascha Wildner <saw@online.de> 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer as 13 * the first lines of this file unmodified. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD: src/sys/dev/syscons/scvidctl.c,v 1.19.2.2 2000/05/05 09:16:08 nyan Exp $ 30 * $DragonFly: src/sys/dev/misc/syscons/scvidctl.c,v 1.10 2005/06/11 00:26:45 dillon Exp $ 31 */ 32 33 #include "opt_syscons.h" 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/conf.h> 38 #include <sys/signalvar.h> 39 #include <sys/tty.h> 40 #include <sys/kernel.h> 41 #include <sys/thread2.h> 42 43 #include <machine/console.h> 44 45 #include <dev/video/fb/fbreg.h> 46 #include "syscons.h" 47 48 SET_DECLARE(scrndr_set, const sc_renderer_t); 49 50 int 51 sc_set_text_mode(scr_stat *scp, struct tty *tp, int mode, int xsize, int ysize, 52 int fontsize) 53 { 54 video_info_t info; 55 u_char *font; 56 int prev_ysize; 57 int error; 58 59 if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info)) 60 return ENODEV; 61 62 /* adjust argument values */ 63 if (fontsize <= 0) 64 fontsize = info.vi_cheight; 65 if (fontsize < 14) { 66 fontsize = 8; 67 #ifndef SC_NO_FONT_LOADING 68 if (!(scp->sc->fonts_loaded & FONT_8)) 69 return EINVAL; 70 font = scp->sc->font_8; 71 #else 72 font = NULL; 73 #endif 74 } else if (fontsize >= 16) { 75 fontsize = 16; 76 #ifndef SC_NO_FONT_LOADING 77 if (!(scp->sc->fonts_loaded & FONT_16)) 78 return EINVAL; 79 font = scp->sc->font_16; 80 #else 81 font = NULL; 82 #endif 83 } else { 84 fontsize = 14; 85 #ifndef SC_NO_FONT_LOADING 86 if (!(scp->sc->fonts_loaded & FONT_14)) 87 return EINVAL; 88 font = scp->sc->font_14; 89 #else 90 font = NULL; 91 #endif 92 } 93 if ((xsize <= 0) || (xsize > info.vi_width)) 94 xsize = info.vi_width; 95 if ((ysize <= 0) || (ysize > info.vi_height)) 96 ysize = info.vi_height; 97 98 /* stop screen saver, etc */ 99 crit_enter(); 100 if ((error = sc_clean_up(scp))) { 101 crit_exit(); 102 return error; 103 } 104 105 if (sc_render_match(scp, scp->sc->adp->va_name, 0) == NULL) { 106 crit_exit(); 107 return ENODEV; 108 } 109 110 /* set up scp */ 111 #ifndef SC_NO_HISTORY 112 if (scp->history != NULL) 113 sc_hist_save(scp); 114 #endif 115 prev_ysize = scp->ysize; 116 /* 117 * This is a kludge to fend off scrn_update() while we 118 * muck around with scp. XXX 119 */ 120 scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN; 121 scp->status &= ~(GRAPHICS_MODE | PIXEL_MODE | MOUSE_VISIBLE); 122 scp->mode = mode; 123 scp->xsize = xsize; 124 scp->ysize = ysize; 125 scp->xoff = 0; 126 scp->yoff = 0; 127 scp->xpixel = scp->xsize*8; 128 scp->ypixel = scp->ysize*fontsize; 129 scp->font = font; 130 scp->font_size = fontsize; 131 132 /* allocate buffers */ 133 sc_alloc_scr_buffer(scp, TRUE, TRUE); 134 sc_init_emulator(scp, NULL); 135 #ifndef SC_NO_CUTPASTE 136 sc_alloc_cut_buffer(scp, FALSE); 137 #endif 138 #ifndef SC_NO_HISTORY 139 sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE); 140 #endif 141 crit_exit(); 142 143 if (scp == scp->sc->cur_scp) 144 set_mode(scp); 145 scp->status &= ~UNKNOWN_MODE; 146 147 if (tp == NULL) 148 return 0; 149 DPRINTF(5, ("ws_*size (%d,%d), size (%d,%d)\n", 150 tp->t_winsize.ws_col, tp->t_winsize.ws_row, scp->xsize, scp->ysize)); 151 if (tp->t_winsize.ws_col != scp->xsize 152 || tp->t_winsize.ws_row != scp->ysize) { 153 tp->t_winsize.ws_col = scp->xsize; 154 tp->t_winsize.ws_row = scp->ysize; 155 pgsignal(tp->t_pgrp, SIGWINCH, 1); 156 } 157 158 return 0; 159 } 160 161 int 162 sc_set_graphics_mode(scr_stat *scp, struct tty *tp, int mode) 163 { 164 #ifdef SC_NO_MODE_CHANGE 165 return ENODEV; 166 #else 167 video_info_t info; 168 int error; 169 170 if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, mode, &info)) 171 return ENODEV; 172 173 /* stop screen saver, etc */ 174 crit_enter(); 175 if ((error = sc_clean_up(scp))) { 176 crit_exit(); 177 return error; 178 } 179 180 if (sc_render_match(scp, scp->sc->adp->va_name, GRAPHICS_MODE) == NULL) { 181 crit_exit(); 182 return ENODEV; 183 } 184 185 /* set up scp */ 186 scp->status |= (UNKNOWN_MODE | GRAPHICS_MODE | MOUSE_HIDDEN); 187 scp->status &= ~(PIXEL_MODE | MOUSE_VISIBLE); 188 scp->mode = mode; 189 /* 190 * Don't change xsize and ysize; preserve the previous vty 191 * and history buffers. 192 */ 193 scp->xoff = 0; 194 scp->yoff = 0; 195 scp->xpixel = info.vi_width; 196 scp->ypixel = info.vi_height; 197 scp->font = NULL; 198 scp->font_size = 0; 199 #ifndef SC_NO_SYSMOUSE 200 /* move the mouse cursor at the center of the screen */ 201 sc_mouse_move(scp, scp->xpixel / 2, scp->ypixel / 2); 202 #endif 203 sc_init_emulator(scp, NULL); 204 crit_exit(); 205 206 if (scp == scp->sc->cur_scp) 207 set_mode(scp); 208 /* clear_graphics();*/ 209 refresh_ega_palette(scp); 210 scp->status &= ~UNKNOWN_MODE; 211 212 if (tp == NULL) 213 return 0; 214 if (tp->t_winsize.ws_xpixel != scp->xpixel 215 || tp->t_winsize.ws_ypixel != scp->ypixel) { 216 tp->t_winsize.ws_xpixel = scp->xpixel; 217 tp->t_winsize.ws_ypixel = scp->ypixel; 218 pgsignal(tp->t_pgrp, SIGWINCH, 1); 219 } 220 221 return 0; 222 #endif /* SC_NO_MODE_CHANGE */ 223 } 224 225 int 226 sc_set_pixel_mode(scr_stat *scp, struct tty *tp, int xsize, int ysize, 227 int fontsize) 228 { 229 #ifndef SC_PIXEL_MODE 230 return ENODEV; 231 #else 232 video_info_t info; 233 u_char *font; 234 int prev_ysize; 235 int error; 236 237 if ((*vidsw[scp->sc->adapter]->get_info)(scp->sc->adp, scp->mode, &info)) 238 return ENODEV; /* this shouldn't happen */ 239 240 /* adjust argument values */ 241 if (fontsize <= 0) 242 fontsize = info.vi_cheight; 243 if (fontsize < 14) { 244 fontsize = 8; 245 #ifndef SC_NO_FONT_LOADING 246 if (!(scp->sc->fonts_loaded & FONT_8)) 247 return EINVAL; 248 font = scp->sc->font_8; 249 #else 250 font = NULL; 251 #endif 252 } else if (fontsize >= 16) { 253 fontsize = 16; 254 #ifndef SC_NO_FONT_LOADING 255 if (!(scp->sc->fonts_loaded & FONT_16)) 256 return EINVAL; 257 font = scp->sc->font_16; 258 #else 259 font = NULL; 260 #endif 261 } else { 262 fontsize = 14; 263 #ifndef SC_NO_FONT_LOADING 264 if (!(scp->sc->fonts_loaded & FONT_14)) 265 return EINVAL; 266 font = scp->sc->font_14; 267 #else 268 font = NULL; 269 #endif 270 } 271 if (xsize <= 0) 272 xsize = info.vi_width/8; 273 if (ysize <= 0) 274 ysize = info.vi_height/fontsize; 275 276 if ((info.vi_width < xsize*8) || (info.vi_height < ysize*fontsize)) 277 return EINVAL; 278 279 /* 280 * We currently support the following graphic modes: 281 * 282 * - 4 bpp planar modes whose memory size does not exceed 64K 283 * - 15, 16, 24 and 32 bpp linear modes 284 */ 285 286 if (info.vi_mem_model == V_INFO_MM_PLANAR) { 287 if (info.vi_planes != 4) 288 return ENODEV; 289 290 /* 291 * A memory size >64K requires bank switching to access the entire 292 * screen. XXX 293 */ 294 295 if (info.vi_width * info.vi_height / 8 > info.vi_window_size) 296 return ENODEV; 297 } else if (info.vi_mem_model == V_INFO_MM_DIRECT) { 298 if ((info.vi_depth != 15) && (info.vi_depth != 16) && 299 (info.vi_depth != 24) && (info.vi_depth != 32)) 300 return ENODEV; 301 } else 302 return ENODEV; 303 304 /* stop screen saver, etc */ 305 crit_enter(); 306 if ((error = sc_clean_up(scp))) { 307 crit_exit(); 308 return error; 309 } 310 311 if (sc_render_match(scp, scp->sc->adp->va_name, PIXEL_MODE) == NULL) { 312 crit_exit(); 313 return ENODEV; 314 } 315 316 #if 0 317 if (scp->tsw) 318 (*scp->tsw->te_term)(scp, scp->ts); 319 scp->tsw = NULL; 320 scp->ts = NULL; 321 #endif 322 323 /* set up scp */ 324 #ifndef SC_NO_HISTORY 325 if (scp->history != NULL) 326 sc_hist_save(scp); 327 #endif 328 prev_ysize = scp->ysize; 329 scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN); 330 scp->status &= ~(GRAPHICS_MODE | MOUSE_VISIBLE); 331 scp->xsize = xsize; 332 scp->ysize = ysize; 333 scp->xoff = (scp->xpixel/8 - xsize)/2; 334 scp->yoff = (scp->ypixel/fontsize - ysize)/2; 335 scp->font = font; 336 scp->font_size = fontsize; 337 338 /* allocate buffers */ 339 sc_alloc_scr_buffer(scp, TRUE, TRUE); 340 sc_init_emulator(scp, NULL); 341 #ifndef SC_NO_CUTPASTE 342 sc_alloc_cut_buffer(scp, FALSE); 343 #endif 344 #ifndef SC_NO_HISTORY 345 sc_alloc_history_buffer(scp, 0, prev_ysize, FALSE); 346 #endif 347 crit_exit(); 348 349 if (scp == scp->sc->cur_scp) { 350 sc_set_border(scp, scp->border); 351 sc_set_cursor_image(scp); 352 } 353 354 scp->status &= ~UNKNOWN_MODE; 355 356 if (tp == NULL) 357 return 0; 358 if (tp->t_winsize.ws_col != scp->xsize 359 || tp->t_winsize.ws_row != scp->ysize) { 360 tp->t_winsize.ws_col = scp->xsize; 361 tp->t_winsize.ws_row = scp->ysize; 362 pgsignal(tp->t_pgrp, SIGWINCH, 1); 363 } 364 365 return 0; 366 #endif /* SC_PIXEL_MODE */ 367 } 368 369 #define fb_ioctl(a, c, d) \ 370 (((a) == NULL) ? ENODEV : \ 371 (*vidsw[(a)->va_index]->ioctl)((a), (c), (caddr_t)(d))) 372 373 int 374 sc_vid_ioctl(struct tty *tp, u_long cmd, caddr_t data, int flag, struct thread *td) 375 { 376 scr_stat *scp; 377 video_adapter_t *adp; 378 video_info_t info; 379 int error; 380 381 scp = SC_STAT(tp->t_dev); 382 if (scp == NULL) /* tp == SC_MOUSE */ 383 return ENOIOCTL; 384 adp = scp->sc->adp; 385 if (adp == NULL) /* shouldn't happen??? */ 386 return ENODEV; 387 388 switch (cmd) { 389 390 case CONS_CURRENTADP: /* get current adapter index */ 391 case FBIO_ADAPTER: 392 return fb_ioctl(adp, FBIO_ADAPTER, data); 393 394 case CONS_CURRENT: /* get current adapter type */ 395 case FBIO_ADPTYPE: 396 return fb_ioctl(adp, FBIO_ADPTYPE, data); 397 398 case CONS_ADPINFO: /* adapter information */ 399 case FBIO_ADPINFO: 400 if (((video_adapter_info_t *)data)->va_index >= 0) { 401 adp = vid_get_adapter(((video_adapter_info_t *)data)->va_index); 402 if (adp == NULL) 403 return ENODEV; 404 } 405 return fb_ioctl(adp, FBIO_ADPINFO, data); 406 407 case CONS_GET: /* get current video mode */ 408 case FBIO_GETMODE: 409 *(int *)data = scp->mode; 410 return 0; 411 412 #ifndef SC_NO_MODE_CHANGE 413 case FBIO_SETMODE: /* set video mode */ 414 if (!(adp->va_flags & V_ADP_MODECHANGE)) 415 return ENODEV; 416 info.vi_mode = *(int *)data; 417 error = fb_ioctl(adp, FBIO_MODEINFO, &info); 418 if (error) 419 return error; 420 if (info.vi_flags & V_INFO_GRAPHICS) 421 return sc_set_graphics_mode(scp, tp, *(int *)data); 422 else 423 return sc_set_text_mode(scp, tp, *(int *)data, 0, 0, 0); 424 #endif /* SC_NO_MODE_CHANGE */ 425 426 case CONS_MODEINFO: /* get mode information */ 427 case FBIO_MODEINFO: 428 return fb_ioctl(adp, FBIO_MODEINFO, data); 429 430 case CONS_FINDMODE: /* find a matching video mode */ 431 case FBIO_FINDMODE: 432 return fb_ioctl(adp, FBIO_FINDMODE, data); 433 434 case CONS_SETWINORG: /* set frame buffer window origin */ 435 case FBIO_SETWINORG: 436 if (scp != scp->sc->cur_scp) 437 return ENODEV; /* XXX */ 438 return fb_ioctl(adp, FBIO_SETWINORG, data); 439 440 case FBIO_GETWINORG: /* get frame buffer window origin */ 441 if (scp != scp->sc->cur_scp) 442 return ENODEV; /* XXX */ 443 return fb_ioctl(adp, FBIO_GETWINORG, data); 444 445 case FBIO_GETDISPSTART: 446 case FBIO_SETDISPSTART: 447 case FBIO_GETLINEWIDTH: 448 case FBIO_SETLINEWIDTH: 449 if (scp != scp->sc->cur_scp) 450 return ENODEV; /* XXX */ 451 return fb_ioctl(adp, cmd, data); 452 453 case FBIO_GETPALETTE: 454 case FBIO_SETPALETTE: 455 case FBIOPUTCMAP: 456 case FBIOGETCMAP: 457 case FBIOGTYPE: 458 case FBIOGATTR: 459 case FBIOSVIDEO: 460 case FBIOGVIDEO: 461 case FBIOSCURSOR: 462 case FBIOGCURSOR: 463 case FBIOSCURPOS: 464 case FBIOGCURPOS: 465 case FBIOGCURMAX: 466 if (scp != scp->sc->cur_scp) 467 return ENODEV; /* XXX */ 468 return fb_ioctl(adp, cmd, data); 469 470 #ifndef SC_NO_MODE_CHANGE 471 /* generic text modes */ 472 case SW_TEXT_80x25: case SW_TEXT_80x30: 473 case SW_TEXT_80x43: case SW_TEXT_80x50: 474 case SW_TEXT_80x60: 475 /* FALL THROUGH */ 476 477 /* VGA TEXT MODES */ 478 case SW_VGA_C40x25: 479 case SW_VGA_C80x25: case SW_VGA_M80x25: 480 case SW_VGA_C80x30: case SW_VGA_M80x30: 481 case SW_VGA_C80x50: case SW_VGA_M80x50: 482 case SW_VGA_C80x60: case SW_VGA_M80x60: 483 case SW_VGA_C90x25: case SW_VGA_M90x25: 484 case SW_VGA_C90x30: case SW_VGA_M90x30: 485 case SW_VGA_C90x43: case SW_VGA_M90x43: 486 case SW_VGA_C90x50: case SW_VGA_M90x50: 487 case SW_VGA_C90x60: case SW_VGA_M90x60: 488 case SW_B40x25: case SW_C40x25: 489 case SW_B80x25: case SW_C80x25: 490 case SW_ENH_B40x25: case SW_ENH_C40x25: 491 case SW_ENH_B80x25: case SW_ENH_C80x25: 492 case SW_ENH_B80x43: case SW_ENH_C80x43: 493 case SW_EGAMONO80x25: 494 if (!(adp->va_flags & V_ADP_MODECHANGE)) 495 return ENODEV; 496 return sc_set_text_mode(scp, tp, cmd & 0xff, 0, 0, 0); 497 498 /* GRAPHICS MODES */ 499 case SW_BG320: case SW_BG640: 500 case SW_CG320: case SW_CG320_D: case SW_CG640_E: 501 case SW_CG640x350: case SW_ENH_CG640: 502 case SW_BG640x480: case SW_CG640x480: case SW_VGA_CG320: 503 case SW_VGA_MODEX: 504 if (!(adp->va_flags & V_ADP_MODECHANGE)) 505 return ENODEV; 506 return sc_set_graphics_mode(scp, tp, cmd & 0xff); 507 #endif /* SC_NO_MODE_CHANGE */ 508 509 case KDSETMODE: /* set current mode of this (virtual) console */ 510 switch (*(int *)data) { 511 case KD_TEXT: /* switch to TEXT (known) mode */ 512 /* 513 * If scp->mode is of graphics modes, we don't know which 514 * text mode to switch back to... 515 */ 516 if (scp->status & GRAPHICS_MODE) 517 return EINVAL; 518 /* restore fonts & palette ! */ 519 #if 0 520 #ifndef SC_NO_FONT_LOADING 521 if (ISFONTAVAIL(adp->va_flags) 522 && !(scp->status & (GRAPHICS_MODE | PIXEL_MODE))) 523 /* 524 * FONT KLUDGE 525 * Don't load fonts for now... XXX 526 */ 527 if (scp->sc->fonts_loaded & FONT_8) 528 sc_load_font(scp, 0, 8, scp->sc->font_8, 0, 256); 529 if (scp->sc->fonts_loaded & FONT_14) 530 sc_load_font(scp, 0, 14, scp->sc->font_14, 0, 256); 531 if (scp->sc->fonts_loaded & FONT_16) 532 sc_load_font(scp, 0, 16, scp->sc->font_16, 0, 256); 533 } 534 #endif /* SC_NO_FONT_LOADING */ 535 #endif 536 537 #ifndef SC_NO_PALETTE_LOADING 538 load_palette(adp, scp->sc->palette); 539 #endif 540 541 /* move hardware cursor out of the way */ 542 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 543 /* FALL THROUGH */ 544 545 case KD_TEXT1: /* switch to TEXT (known) mode */ 546 /* 547 * If scp->mode is of graphics modes, we don't know which 548 * text/pixel mode to switch back to... 549 */ 550 if (scp->status & GRAPHICS_MODE) 551 return EINVAL; 552 crit_enter(); 553 if ((error = sc_clean_up(scp))) { 554 crit_exit(); 555 return error; 556 } 557 scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN; 558 crit_exit(); 559 /* no restore fonts & palette */ 560 if (scp == scp->sc->cur_scp) 561 set_mode(scp); 562 sc_clear_screen(scp); 563 scp->status &= ~UNKNOWN_MODE; 564 return 0; 565 566 #ifdef SC_PIXEL_MODE 567 case KD_PIXEL: /* pixel (raster) display */ 568 if (!(scp->status & (GRAPHICS_MODE | PIXEL_MODE))) 569 return EINVAL; 570 if (scp->status & GRAPHICS_MODE) 571 return sc_set_pixel_mode(scp, tp, scp->xsize, scp->ysize, 572 scp->font_size); 573 crit_enter(); 574 if ((error = sc_clean_up(scp))) { 575 crit_exit(); 576 return error; 577 } 578 scp->status |= (UNKNOWN_MODE | PIXEL_MODE | MOUSE_HIDDEN); 579 crit_exit(); 580 if (scp == scp->sc->cur_scp) { 581 set_mode(scp); 582 #ifndef SC_NO_PALETTE_LOADING 583 load_palette(adp, scp->sc->palette); 584 #endif 585 } 586 sc_clear_screen(scp); 587 scp->status &= ~UNKNOWN_MODE; 588 return 0; 589 #endif /* SC_PIXEL_MODE */ 590 591 case KD_GRAPHICS: /* switch to GRAPHICS (unknown) mode */ 592 crit_enter(); 593 if ((error = sc_clean_up(scp))) { 594 crit_exit(); 595 return error; 596 } 597 scp->status |= UNKNOWN_MODE | MOUSE_HIDDEN; 598 crit_exit(); 599 return 0; 600 601 default: 602 return EINVAL; 603 } 604 /* NOT REACHED */ 605 606 #ifdef SC_PIXEL_MODE 607 case KDRASTER: /* set pixel (raster) display mode */ 608 if (ISUNKNOWNSC(scp) || ISTEXTSC(scp)) 609 return ENODEV; 610 return sc_set_pixel_mode(scp, tp, ((int *)data)[0], ((int *)data)[1], 611 ((int *)data)[2]); 612 #endif /* SC_PIXEL_MODE */ 613 614 case KDGETMODE: /* get current mode of this (virtual) console */ 615 /* 616 * From the user program's point of view, KD_PIXEL is the same 617 * as KD_TEXT... 618 */ 619 *data = ISGRAPHSC(scp) ? KD_GRAPHICS : KD_TEXT; 620 return 0; 621 622 case KDSBORDER: /* set border color of this (virtual) console */ 623 scp->border = *data; 624 if (scp == scp->sc->cur_scp) 625 sc_set_border(scp, scp->border); 626 return 0; 627 } 628 629 return ENOIOCTL; 630 } 631 632 static LIST_HEAD(, sc_renderer) sc_rndr_list = 633 LIST_HEAD_INITIALIZER(sc_rndr_list); 634 635 int 636 sc_render_add(sc_renderer_t *rndr) 637 { 638 LIST_INSERT_HEAD(&sc_rndr_list, rndr, link); 639 return 0; 640 } 641 642 int 643 sc_render_remove(sc_renderer_t *rndr) 644 { 645 /* 646 LIST_REMOVE(rndr, link); 647 */ 648 return EBUSY; /* XXX */ 649 } 650 651 sc_rndr_sw_t 652 *sc_render_match(scr_stat *scp, char *name, int mode) 653 { 654 const sc_renderer_t **list; 655 const sc_renderer_t *p; 656 657 if (!LIST_EMPTY(&sc_rndr_list)) { 658 LIST_FOREACH(p, &sc_rndr_list, link) { 659 if ((strcmp(p->name, name) == 0) 660 && (mode == p->mode)) { 661 scp->status &= 662 ~(VR_CURSOR_ON | VR_CURSOR_BLINK); 663 return p->rndrsw; 664 } 665 } 666 } else { 667 SET_FOREACH(list, scrndr_set) { 668 p = *list; 669 if ((strcmp(p->name, name) == 0) 670 && (mode == p->mode)) { 671 scp->status &= 672 ~(VR_CURSOR_ON | VR_CURSOR_BLINK); 673 return p->rndrsw; 674 } 675 } 676 } 677 678 return NULL; 679 } 680